import { Observable } from 'rxjs';
export interface TrafficList {
    date: string;
    value: number;
    delta: {
        up: boolean;
        value: number;
    };
    comparison: {
        prevDate: string;
        prevValue: number;
        nextDate: string;
        nextValue: number;
    };
}
export declare abstract class TrafficListData {
    abstract getTrafficListData(period: string): Observable<TrafficList>;
}